Egyptian Journal of Neurosurgery

Table 4 Brain tumors gross pathology according to CT, MRI, and IOUS investigation

From: Gross pathology of brain mass lesions by intraoperative ultrasonography: a comparative study

	CT		MRI		IOUS		P
	n	%	n	%	n	%	CT versus IOUS	MRI versus IOUS	CT versus MRI
Well-defined edge	120	45.6	198	75.3	240	91.3	0.001*	0.001*	0.001*
Regular contour	84	31.9	138	52.5	154	58.6	0.001*	0.001*	0.001*
Necrosis	61	23.2	125	47.5	146	55.5	0.001*	0.001*	0.001*
Hematoma	11	4.2	11	4.2	11	4.2	1	1	1
Calcification	38	14.4	12	4.6	37	14.1	1	0.001*	0.001*
Edema	225	85.6	225	85.6	225	85.6	1	1	1
Cysts	106	40.3	129	49.0	168	63.9	0.001*	0.001*	0.001*
Single	40	15.2	53	20.2	77	29.3	0.001*	0.001*	0.001*
Multiple	66	25.1	76	28.9	91	34.6	0.001*	0.001*	0.001*
Trabeculation	10	3.8	20	7.6	42	16.0	0.001*	0.001*	0.001*
Thin wall	40	15.2	52	19.8	85	32.3	0.001*	0.001*	0.001*
Thick wall	60	25.1	77	29.3	84	31.9	0.001*	0.016*	0.04*
Diameter in centimeter
Median (range)	4.8(1.5–10)		5(1.7–10.1)		4.9(1.9–10.8)		0.06	0.065	0.55
Color (main gray scale)
Hypo	226	85.9	235	89.4	86	32.7	0.001*	0.001*	0.022*
Hyper	37	14.1	28	10.6	177	67.3	0.001*	0.001*	0.022*
Homogeneity
Homogeneous	95	36.1	61	23.2	55	20.9	0.001*	0.03*	0.001*
Heterogeneous	168	63.9	197	76.8	208	79.1	0.001*	0.03*	0.001*

*P < 0.05 significant
IOUS (intraoperative ultrasound), CT (computed tomography), MRI (magnetic resonance imaging)

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